US7559716B2 - Clamping lever with vertically adjustable thrust bearing - Google Patents

Clamping lever with vertically adjustable thrust bearing Download PDF

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Publication number
US7559716B2
US7559716B2 US11/420,063 US42006306A US7559716B2 US 7559716 B2 US7559716 B2 US 7559716B2 US 42006306 A US42006306 A US 42006306A US 7559716 B2 US7559716 B2 US 7559716B2
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United States
Prior art keywords
clamping
bolt
washer
set bolt
lock nut
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US11/420,063
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US20060273503A1 (en
Inventor
Berhard Ganter
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Otto Ganter GmbH and Co KG Normteilefabrik
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Otto Ganter GmbH and Co KG Normteilefabrik
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Assigned to OTTO GANTER GMBH & CO. KG NORMTEILEFABRIK reassignment OTTO GANTER GMBH & CO. KG NORMTEILEFABRIK ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GANTER, BERNHARD
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
    • F16B2/185—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles using levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0642—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being arranged one on top of the other and in full close contact with each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/59—Manually releaseable latch type
    • Y10T403/591—Manually releaseable latch type having operating mechanism
    • Y10T403/595—Lever

Definitions

  • the subject matter of the invention is a clamping lever with a vertically adjustable thrust bearing, whose cross hole does not wear out in the region of the tension lever and that the tension lever always exhibits a maximum clamping power.
  • a clamping lever is used for various clamping tasks.
  • One typical example is the construction of such a clamping lever as an eccentric tension lever; however the invention is not restricted to this example.
  • Such eccentric tension levers are used for clamping tasks in machine building; however they are also used for example for the securing of the hubs of bicycle wheels at the front wheel forks or rear stays of a bicycle.
  • the clamping lever should be brought from its most upright possible, slack position into a folded, taut position.
  • the release position is namely characterized in particular in that the hand-operated lever is located in an upright pivotal position, while the taut position preferably should be characterized in such a way that the clamping lever is in a somewhat horizontal taut position.
  • clamping position by that it is meant that the clamping lever is brought into its most favorable mechanical engineering pivotal movement, i.e. the clamping lever in the taut position should not be in the way, it should have the most favorable position ergonomically and in the embodiment as an eccentric, should achieve the greatest gripping power.
  • the tension bolt itself which is used for tensioning between the surfaces to be tensioned and penetrates these surfaces, to be vertically adjustable.
  • a third known embodiment provides a tension bolt for setting the tension height, said tension bolt penetrating both plates or elements to be tensioned with a through borehole and bearing a threading on its free lower end onto which a nut is screwed. Consequently by means of the adjustment of this nut the tension height can also be set.
  • the named embodiments suffer from the drawback that the tension height can only be adjusted if one gets hold of the underside of the threaded bolt and the threaded nut located there.
  • the inventive tension lever has forked ends on its interior, to be precise at the face of the forked end, an inclination opposite to the opposing head of an arranged set bolt.
  • This inclination exhibits a lower edge which upon reaching of the maximum swivel range of the tension lever strikes the outer surface of the set bolt.
  • the invention is thus based on the object of further developing a clamping lever with vertically adjustable thrust bearing in such a way that the cross hole does not wear out in the region of the tension lever and that the tension lever always exhibits a maximum clamping power.
  • the invention is characterized by the fact that the cross bolt is held secure from torsion in a cross hole of the set bolt and that the tension lever exhibits a pivoting angle limit to the set bolt.
  • the bearing bolt (cross bolt) is arranged in a torsion secure manner in the cross hole of the tension lever, by arranging said bearing bolt in the cross hole, for example like a kind of interference fit or via a provided deformation of the cross bolt if said cross bolt is arranged in the cross hole.
  • the tension lever exhibits a pivoting angle limit which guarantees that the tension lever exhibits its maximum clamping power when said tension lever has occupied its maximum swivel down position.
  • a lock nut is arranged freely pivoting on the clamping plate and that said lock nut exhibits an internal thread into which the external thread of a washer engages, said washer consequently being constructed vertically adjustable with reference to the lock nut.
  • the washer which is held vertically adjustable in the lock nut 9 , then forms the thrust bearing or the clamping surface for the clamping contour of the clamping lever.
  • This washer is in accordance with the invention now constructed vertically adjustable, because with its external thread it engages into an associated internal thread of the lock nut resting on the clamping plate.
  • FIG. 1 a sectional view of a first reduction to practice of the invention in taut position
  • FIG. 2 a second embodiment in section
  • FIG. 3 an embodiment constructed in accordance with FIG. 2 , however without representation of the threaded bolt or with internal thread;
  • FIG. 4 the cross section through the lock nut
  • FIG. 5 the side view of the lock nut
  • FIG. 6 the top view on the lock nut
  • FIG. 7 the top view on the clamping lever
  • FIG. 8 the side view of the set bolt
  • FIG. 9 the section through the set bolt
  • FIG. 10 the perspective side view of the set bolt
  • FIG. 11 the side view of the washer
  • FIG. 12 the top view on the other washer
  • FIG. 13 section through the washer
  • FIG. 14 perspective side view of the washer
  • FIG. 15 a diagrammatic first representation of an embodiment with a minimum adjusted lock nut in the case of a tensioned clamping lever
  • FIG. 16 the same representation as in FIG. 15 , however with a maximum adjusted locknut
  • FIG. 17 the position of the clamping lever in accordance with FIG. 15 in slack state
  • FIG. 18 the position of the clamping lever in accordance with FIG. 16 in slack state.
  • FIGS. 1 and 2 fundamentally show that a clamping element in the form of a plate 2 is to be clamped on a base element in the form of a plate 1 .
  • a tapped hole 3 is arranged on a base element in the form of plate 1 , into which tapped hole the threaded bolt 6 engages with an associated external thread.
  • the threaded blot 6 overlaps in other respects the unprepared borehole 4 in the clamping element in the form of plate 2 with play.
  • the upper end of the threaded bolt 6 in this connection is screwed into the internal thread of a set bolt 11 , said set bolt in its upper region bearing a cross hole 27 which is penetrated by a cross bolt 12 .
  • This cross bolt 12 forms the pivot bearing for the tension lever 13 .
  • tension lever 13 exhibits an inclination 38 engineered between the two legs of the tension lever 13 .
  • the lower edge 39 at the inclination 38 strikes the outer surface of the set bolt 11 upon achieving the maximum swivel range of the tension lever 13 , said surface being described in FIG. 2 as the stop face 40 .
  • threaded bolt 6 can also be constructed in one piece with the set bolt 11 .
  • the tension lever 13 encompasses with two clamping parts 24 the cross bolt 12 and forms a clamping contour 14 on its outer circumference.
  • this clamping contour is constructed as a spiral, i.e. the pitch of the clamping contour 14 is uniformly expanding over the entire pivoting angle of the tension lever 13 with reference to the axis of rotation.
  • an eccentric clamping surface can also be used.
  • Locking clamping surfaces can also be used, in which case in the region of the clamping contour 14 specific projections and knobs, grooves or the like are arranged.
  • the vertically adjustable clamp bearing for the tension lever 13 is formed by a lock nut 9 seated on the clamping plate 2 , said lock nut 9 being freely pivoting about the axis of set bolt 11 and constructed of a washer 10 screwed in the internal thread of the lock nut 9 , said washer 10 consequently being vertically adjustable with reference to lock nut 9 .
  • FIG. 2 shows as a further embodiment an equally vertically adjustable clamp bearing, where however the connection to the base plate 1 is disengaged in a different way.
  • a tension bolt 7 is provided, said tension bolt penetrating the boreholes in base plate 1 and clamping plate 2 which are unprepared and flush to one another and bearing a threading on its front free end, to which a nut 8 is screwed.
  • a screw head can also be provided.
  • FIG. 3 shows an embodiment similar to FIG. 1 , where it can be recognized that the underside of the lock nut 9 is constructed as a clamping surface 15 with which said lock nut rests on the clamping plate 2 .
  • the through hole 16 is formed by a total of four different bore diameters, namely a small diameter relative to the bore diameter 17 , said small diameter transitioning to a bore diameter 18 , which in turn transitions to a bore diameter 19 and said bore diameter transitioning to a bore diameter 20 .
  • the bore diameter 19 serves only the purpose of release in the production of the internal thread 21 on the inner circumference of the bore diameter 20 .
  • the attachment 29 of the set bolt 11 then rests on the inner face of the bore diameter 18 .
  • the diameter of the attachment 29 in the set bolt 11 however extends over the entire length of the set bolt.
  • the bore diameter 17 corresponds to the inner diameter of the threaded bolt 6 .
  • FIG. 5 also shows that the outer circumference of the lock nut 9 bears a knurled surface 22 .
  • a wrench size can also be arranged, in order to guarantee an easy torsibility of the lock nut 9 .
  • FIG. 7 shows a recess 25 between the two parallel arranged clamping parts 24 , said recess which encompasses the set bolt 11 .
  • FIGS. 8 through 10 show the forming of the set bolt 11 .
  • the set bolt consists of a cylindrical bolt which on its underside bears the attachment, which extends with its diameter over the entire length of the set bolt 11 and bears the attachment 29 on the underside.
  • the purpose of this action is to have the set bolt penetrate in a torsion secure manner through an associated recess 32 adapted in forming into the washer 10 shown in FIGS. 11 through 14 .
  • an internal thread 28 is present in the longitudinal borehole of the set bolt 11 , into which said thread for example the bolts 6 , 7 are screwed.
  • the upper face of the set bolt 11 is constructed as a circular part 26 in order in this way to penetrate through the recess 25 in the tension lever 13 .
  • a stop face 23 is provided, said stop face serving the purpose of the pivoting angle limit of the tension lever 13 . This is important in the execution of the clamping surface as eccentric, in order to restrict the lever sweep in the case of the highest gripping power.
  • a collar 37 is arranged, said collar serving the purpose of loss protection of the washer 10 on the set bolt 11 .
  • the lateral surfaces 30 thus penetrate through the associated contour 34 to the region of the recess 32 and the collar 37 joins to the inner face of the recess 33 , in order in this way to guarantee a captivity of the vertical adjustment elements (washer 10 ) on the set bolt 11 .
  • the outer circumference of the washer 10 in this connection exhibits an external thread 36 , into which the washer 10 is screwed in the associated internal thread 21 in the region of the recess 20 in the lock nut 9 .
  • the washer 10 is constructed vertically adjustable with reference to lock nut 9 .
  • the top side of the washer 10 in other respects exhibits two clamp surfaces 35 facing one another and flush with one another, being constructed as semicircular surfaces, for example.
  • the clamping contour 14 of the tension lever 13 hence engages in these semicircular surfaces and results in tensioning there.
  • this top side of the clamp surface 35 is coated with a PTFE material in order to achieve the most low-friction clamping possible.
  • plastics can also be used, or a plastic disk can be placed on the surface as a whole.
  • FIGS. 15 through 18 show different taut positions and the advantages of the invention as a whole.
  • FIG. 15 shows that the tension lever 13 has already reached its maximum taut position, wherein the elevation adjustment bearing, formed of the vertically adjustable washer 10 is screwed into the lock nut 9 in its minimum position.
  • FIG. 16 shows a different taut position in which it can be recognized that now the washer 10 is unscrewed from the lock nut 9 and in this connection the tension lever 13 is also taut.
  • FIG. 17 shows the same representation as FIG. 15 with a slackened tension lever 13 and FIG. 18 shows the slackened position in accordance with FIG. 16 .
  • the internal thread 21 is constructed as a fine pitch thread.
  • the washer 10 can also be constructed as a plastic part.
  • the tension lever 13 can be tensioned in the desired tension alignment as a result of which it is no longer necessary to additionally twist the tension lever.
US11/420,063 2005-05-25 2006-05-24 Clamping lever with vertically adjustable thrust bearing Active 2027-03-30 US7559716B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005024014A DE102005024014B4 (de) 2005-05-25 2005-05-25 Klemmhebel mit höhenverstellbarem Gegenlager
DE102005024014.3 2005-05-25

Publications (2)

Publication Number Publication Date
US20060273503A1 US20060273503A1 (en) 2006-12-07
US7559716B2 true US7559716B2 (en) 2009-07-14

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ID=36869924

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/420,063 Active 2027-03-30 US7559716B2 (en) 2005-05-25 2006-05-24 Clamping lever with vertically adjustable thrust bearing

Country Status (5)

Country Link
US (1) US7559716B2 (de)
EP (1) EP1726403B1 (de)
JP (1) JP5090665B2 (de)
AT (1) ATE470538T1 (de)
DE (2) DE102005024014B4 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090302665A1 (en) * 2006-01-30 2009-12-10 Mark Brian Dowty Anti-rattle track fastener
US20110176865A1 (en) * 2010-01-21 2011-07-21 Q.E.D. Environmental Systems, Inc. Cam-bolt assembly
US11084234B2 (en) 2018-03-28 2021-08-10 Honda Motor Co., Ltd. Rapid repair of pneumatic tire with damage by cut or tear
US11371540B2 (en) * 2018-07-10 2022-06-28 Southco, Inc. Levered latch plunger

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US8805348B2 (en) 2008-07-30 2014-08-12 Qualcomm Incorporated Diary synchronization for smart phone applications
IT1391103B1 (it) * 2008-08-07 2011-11-18 Elesa Spa Dispositivo di serraggio con leva a camma
DE102012204301A1 (de) * 2012-03-19 2013-09-19 Reiner Ruggaber Klemmvorrichtung für eine hinterschnittene Profilnut
CN104757804A (zh) * 2015-04-09 2015-07-08 浙江乐居户外用品有限公司 一种快拆座椅
US20200018334A1 (en) * 2018-07-11 2020-01-16 Edwards Vacuum Llc Clamping apparatus
USD944070S1 (en) 2020-02-26 2022-02-22 Edwards Vacuum Llc Clamp
CN114310700A (zh) * 2021-12-08 2022-04-12 中航西安飞机工业集团股份有限公司 一种测量关节轴承无载启动力矩的夹持装置及使用方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408560A (en) * 1944-01-07 1946-10-01 Warner L Keehn Plate clamp
US2901279A (en) 1955-03-02 1959-08-25 Bethlehem Steel Corp Dogging means
GB1218428A (en) 1968-07-12 1971-01-06 Colchester Tillage Ltd Improvements relating to quick release extension wheel fasteners
US3709088A (en) * 1970-12-14 1973-01-09 Adjustable Bushing Corp Quick acting, high tensile, blind fastener
US5156508A (en) 1989-12-27 1992-10-20 Grisley Kenneth M Cam action clamp
US5526661A (en) * 1994-11-29 1996-06-18 Lin; Joy Quick-release holding down device for bicycle
US5556222A (en) * 1995-02-08 1996-09-17 Chen; Chun-Hsung Quick release mechanism
US5865560A (en) * 1995-12-08 1999-02-02 Mavic S.A. Lockpin adapted to be used on a cycle

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DE1784610C3 (de) * 1968-08-24 1975-08-21 Martin Beilhack Maschinenfabrik Und Hammerwerk Gmbh, 8200 Rosenheim Schnellbefestigungseinrichtung für ein Arbeitsgerät
US5158331A (en) * 1991-02-25 1992-10-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Preloaded latching device
SE505334C2 (sv) * 1994-05-11 1997-08-11 Thule Ind Ab Excenterlåsanordning

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408560A (en) * 1944-01-07 1946-10-01 Warner L Keehn Plate clamp
US2901279A (en) 1955-03-02 1959-08-25 Bethlehem Steel Corp Dogging means
GB1218428A (en) 1968-07-12 1971-01-06 Colchester Tillage Ltd Improvements relating to quick release extension wheel fasteners
US3709088A (en) * 1970-12-14 1973-01-09 Adjustable Bushing Corp Quick acting, high tensile, blind fastener
US5156508A (en) 1989-12-27 1992-10-20 Grisley Kenneth M Cam action clamp
US5526661A (en) * 1994-11-29 1996-06-18 Lin; Joy Quick-release holding down device for bicycle
US5556222A (en) * 1995-02-08 1996-09-17 Chen; Chun-Hsung Quick release mechanism
US5865560A (en) * 1995-12-08 1999-02-02 Mavic S.A. Lockpin adapted to be used on a cycle

Non-Patent Citations (2)

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Title
Carbiner, H., "Spannexzenter, Ausfuhrund und Anwendung", In: technica, No. 7, 18, 1969.
Krahn, U.A., "Konstruktionselemente fur den Vorichtungs-und Maschinenbau", Vogel Buchverlag, 1, 1990.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090302665A1 (en) * 2006-01-30 2009-12-10 Mark Brian Dowty Anti-rattle track fastener
US8376306B2 (en) * 2006-01-30 2013-02-19 Be Aerospace, Inc. Anti-rattle track fastener
US20110176865A1 (en) * 2010-01-21 2011-07-21 Q.E.D. Environmental Systems, Inc. Cam-bolt assembly
US11084234B2 (en) 2018-03-28 2021-08-10 Honda Motor Co., Ltd. Rapid repair of pneumatic tire with damage by cut or tear
US11371540B2 (en) * 2018-07-10 2022-06-28 Southco, Inc. Levered latch plunger

Also Published As

Publication number Publication date
EP1726403A3 (de) 2008-04-23
DE502006007143D1 (de) 2010-07-22
JP2006326829A (ja) 2006-12-07
US20060273503A1 (en) 2006-12-07
DE102005024014A1 (de) 2006-12-07
EP1726403B1 (de) 2010-06-09
DE102005024014B4 (de) 2010-01-21
JP5090665B2 (ja) 2012-12-05
EP1726403A2 (de) 2006-11-29
ATE470538T1 (de) 2010-06-15

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